Table 1

Device testing characteristics

Minimum time taken for a single recording/usageMinimum number of readingsReading to be used in trialECG trace/RR intervals/peripheral pulse measurement
AliveCor30 s11st complete 30 s readingECG trace
WatchBP∼3.5 min31st complete set of three readingsPeripheral pulse
Polar H745 s11st completed readingRR intervals
Firstbeat Bodyguard 22 min11st completed readingRR intervals